Re: [PATCH] timers: Make the lower-level timer function first call than higher-level

[John Stultz]

On Mon, Nov 19, 2018 at 6:10 AM, Muchun Song <smuchun@xxxxxxxxx> wrote:
> The elements of the heads array are a linked list of timer events that
> expire at the current time. And it can contain up to LVL_DEPTH levels
> and the lower the level represents the smaller the time granularity.
>
> Now the result is that the function, which will be called when the timer
> expires, in the higher-level is called first than the lower-level function.
> I think it might be better to call the lower-level timer function first
> than the higher-level function. Because the lower-level has the smaller
> granularity and delay has less impact on higher-level. So fix it.

Interesting.

Do you have any specific examples of where this was helpful?  Maybe
data on how much this helped the case your concerned about?

thanks
-john